Accession Number : ADA185483

Title :   Tensile Strength of Frozen Silt,

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH

Personal Author(s) : Yuanlin, Zhu ; Carbee, David L

PDF Url : ADA185483

Report Date : Aug 1987

Pagination or Media Count : 32

Abstract : Constant strain-rate tension tests were conducted on remolded saturated frozen Fairbanks silt at various temperatures, strain rates, and densities. It was found that the critical strain rate of the ductile-brittle transition is not temperature-dependent at temperatures down to -5 C, but varies with density. The peak tensile strength decreases considerable with decreasing strain rate for ductile failure, but it decreases slightly with increasing strain rate for brittle fracture. The failure strain remains almost constant at temperatures lower than about -2 C, but it varies with density and strain rate at -5 C. The initial tangent modulus is independent of strain rate and increases with decreasing temperature and density. Keywords: Frozen mechanics, Frozen soil, Silt, Soil, Strain, Strength.

Descriptors :   *FREEZING, *SILT, *TENSILE STRENGTH, BRITTLENESS, DUCTILE BRITTLE TRANSITION, DUCTILITY, FAILURE, FRACTURE(MECHANICS), MECHANICS, PEAK VALUES, SOILS, STRAIN RATE, TEMPERATURE, COLD REGIONS, ELONGATION, SOIL MECHANICS, DENSITY, MOISTURE CONTENT, STRESS STRAIN RELATIONS, MODULUS OF ELASTICITY

Subject Categories : Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE